$AMPY CORRESP SEC Filings

10-K 10-K/A 10-Q 144 25 25-NSE 3 4 424B3 424B4 425 4/A 8-A12B 8-K 8-K/A ARS CERTNAS CERTNYS CORRESP DEF 14A DEF 14C DEFA14A DEFM14A DEFR14C EFFECT FWP NT 10-K POS AM PRE 14A PRE 14C PREM14A PX14A6G S-1 S-1/A S-3 S-3/A S-4 S-4/A S-8 SC 13D SC 13D/A SC 13G SC 13G/A SCHEDULE 13D SCHEDULE 13D/A SCHEDULE 13G SCHEDULE 13G/A SC TO-I SC TO-I/A UPLOAD